 <!-- start: left -->            
<div class="sidebar app-aside" id="sidebar">
        <div class="sidebar-container perfect-scrollbar">
            <nav>
                <!-- start: SEARCH FORM -->
               <!--  <div class="search-form">
                   <a class="s-open" href="#">
                       <i class="ti-search"></i>
                   </a>
                   <form class="navbar-form" role="search">
                       <a class="s-remove" href="#" target=".navbar-form">
                           <i class="ti-close"></i>
                       </a>
                       <div class="form-group">
                           <input type="text" class="form-control" placeholder="Search...">
                           <button class="btn search-button" type="submit">
                               <i class="ti-search"></i>
                           </button>
                       </div>
                   </form>
               </div> -->
                <!-- end: SEARCH FORM -->
                <!-- start: MAIN NAVIGATION MENU -->
                <div class="navbar-title">
                    <span>主导航</span>
                </div>
                <ul class="main-navigation-menu">
                    <li>
                        <a href="{:U("Admin/index/index")}">
                            <div class="item-content">
                                <div class="item-media">
                                    <i class="ti-home"></i>
                                </div>
                                <div class="item-inner">
                                    <span class="title"> 首页 </span>
                                </div>
                            </div>
                        </a>
                    </li>

             <volist name="menu" id='vo'>
                    <li <if condition="$_GET.mu_pid eq $vo['id']">class="active open" </if>>
                         <if condition="(empty($vo['tree']))">
                           <a href="javascript:void(0)">
                            <div class="item-content">
                                <div class="item-media">
                                    <i class="ti-layout-grid2"></i>
                                </div>
                                <div class="item-inner">
                                    <span class="title"> {$vo.title} </span>
                                </div>
                            </div>
                        <else/>

                             <a href="javascript:void(0)">
                                <div class="item-content">
                                <div class="item-media">
                                    <i class="{$vo.icon_style}"></i>
                                </div>
                                <div class="item-inner">
                                    <span class="title"> {$vo.title} </span>
                                 <i class="icon-arrow"></i>
                                </div>
                            </div>
                        </if>
                            
                        </a>
                        <if condition="(!empty($vo['tree']))">
                        <ul class="sub-menu">
                             <volist name="vo['tree']"   id='voo'>
                            <li <if condition="$_GET.mu_id eq $voo['id']">class="active" </if> >
                                <a href="{:U($voo['name'],array('mu_pid'=>$vo['id'],'mu_id'=>$voo['id']))}">
                                    <span class="title"> {$voo.title} </span>
                                </a>
                            </li>
                            </volist>
                            
                        </ul>
                       </if>
                    </li>
</volist>

                   
                  
                </ul>
                <!-- end: MAIN NAVIGATION MENU -->
                <!-- start: CORE FEATURES -->
                
                
                <!-- end: CORE FEATURES -->
                <!-- start: DOCUMENTATION BUTTON -->
               <!--  <div class="wrapper">
                   <a href="documentation.html" class="button-o">
                       <i class="ti-help"></i>
                       <span>Documentation</span>
                   </a>
               </div> -->
                <!-- end: DOCUMENTATION BUTTON -->
            </nav>
        </div>
    </div>
 <!-- end: left -->            